CVE-2021-47753

None

CVSS

—

EPSS

0.8%

Published

Jan 15, 2026

CISA due date

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The record

phpKF CMS 3.00 Beta y6 contains an unauthenticated file upload vulnerability that allows remote attackers to execute arbitrary code by bypassing file extension checks. Attackers can upload a PHP file disguised as a PNG, rename it, and execute system commands through a crafted web shell parameter.

Affected packages

Ecosystem	Package	Introduced	Fixed